MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to attract traffic or distribute malicious content. The embedded URL `https://jottigo.ru/strik?utm_term=libros+de+microbiolog%25C3%25ADa+de+los+alimentos+para+descargar+gratis` indicates a lure related to free microbiology books, which is likely a pretext for phishing or malware distribution. No scripts were extracted, but the structure and numerous external links strongly indicate a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 5
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://jottigo.ru/strik?utm_term=libros+de+microbiolog%25C3%25ADa+de+los+alimentos+para+descargar+gratis PDF link annotation
- https://tumurotijom.weebly.com/uploads/1/3/4/5/134512141/tedokijiv_keguz_fetinenoraz.pdfIn PDF document text
- https://salobomuxalevi.weebly.com/uploads/1/3/1/0/131070078/kiregudag-tidesorubikak-zeraxewowelev.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380680/normal_603c279039afa.pdfIn PDF document text
- https://jipafevumo.weebly.com/uploads/1/3/1/6/131636956/346e4e.pdfIn PDF document text
- https://gojafone.weebly.com/uploads/1/3/4/8/134891791/a7a55a9481b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426819/normal_6037f109ba712.pdfIn PDF document text
- https://sinidagiritab.weebly.com/uploads/1/3/5/3/135386058/8425302.pdfIn PDF document text
- https://kedifekutijita.weebly.com/uploads/1/3/4/7/134713117/f9b0cc49a72.pdfIn PDF document text
- https://tudiputowol.weebly.com/uploads/1/3/1/4/131452732/xanagajuzixir_giramukilafe.pdfIn PDF document text
- https://fuviwezajoz.weebly.com/uploads/1/3/1/3/131379384/wozedupoju.pdfIn PDF document text
- https://xebuwonivaxatev.weebly.com/uploads/1/3/2/6/132696015/nufupasurugipi-xilemumopo.pdfIn PDF document text
- https://wabebapag.weebly.com/uploads/1/3/4/3/134335427/kudamolo.pdfIn PDF document text
- https://sinitilelimokiz.weebly.com/uploads/1/3/4/3/134348988/6642913.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368763/normal_6015e141d502a.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/wiwuxot/71254664414.pdfIn PDF document text
- https://s3.amazonaws.com/voxulija/watch_the_unbearable_lightness_of_being_online_free_123movies.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eea6691c-01b5-471b-aa97-01e63a88118d/ms180c_bar_length.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fed836dc-c7e1-4b7a-ac62-8ab0c3df5bca/99367247159.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/89f31c73-eb01-416e-962e-95485c6da419/formal_logic_definition_geometry.pdfIn PDF document text
- https://s3.amazonaws.com/tarizirefevifab/34558535900.pdfIn PDF document text
- https://s3.amazonaws.com/libusamagowuvo/how_to_check_your_drivers_test_appointment.pdfIn PDF document text
- https://s3.amazonaws.com/lolijexejomak/42089996948.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e2dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2DC | 5528 bytes |
SHA-256: d5a0f0b56892b9998350e49c8d642f5d3011b33952d40dd94b8f03bfbe0642b0 |
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font_01_sfnt_off0000f58f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF58F | 10912 bytes |
SHA-256: 06816127142bd56e46709ea8f54b4b9695b8604012b15810e34df532a872e470 |
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